Air-cooled condenser



l Aug. 18, 19,25.

F. LJUNGSTRM ET AL AIR COOLED CONDENSER Filed April 13. 1922 4 Sheets-Sheet 1 Inl/anions ITLJ'wIzLy-smnz llzwej AIR COOLED CONDENSER Filed April 1s. 41922 f 4 sheets-shut a Aug. 18,' 1925. 1,550,177

F. LJUNGSTRM ET AL R COOLED CONDENSER Filed April 13. 1922 4 Sheets-Sheet 4 Patented Aug. 18, 1925.

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FREDRIK LJUNGfSTRlVI, 0F LDlNG-O-BREVIK, AND ISIDOR IBROBERG, 0F LIDINGON,

SWEDEN, AS'SIGNORS TO AKTIEBOLAGET LJUNGSTRMS NGT'URBIN, OF STOCK- HOLM, SWEDEN, A CORPORATION.

AllR-COOLD CONDENSER.

Application filed April' 13, 1922.V Serial No. 552,413.

T0 all whom t may concern:

Be it known that we, Feminin LJUNG- s'rnM, chief engineer, and lsrnon Baonnno,

engineer, subjects of the King of Sweden, residing at, respectively, Lidingo-lrevik,

Sweden, and Tallhyddan, Skarsatra, Lidingon, Sweden, have invented certain new and useful Improvements in or Relating to Air- Cooled Condensers, oi which the following `is a specification.

\ ln air-cooled condensers for locomotives and similar carriages it has previously been suggested to use fans placed at the side oi one another to force the cooling air. In case of large locomotives the necessary room is rather limited on account of the necessity of constructing the extended condenser as short as possible in regard of the diiliculties ot using long carriages in curves and on turntables. By giving the air'cooled condenser a more compact shape, it has been possible to reduce its length, in which case, however, an increased quantity of air is required to cool the same. ln this .case it has proved diiiicult to place within the reduced space the necessary number of fans.

This invention relates to the placing and driving of the fans within a reduced space and consists in that two or more oi' the fans `are so spaced that the distance between two adjacent shafts of the fans is less than the sum of the radii of the fans mounted on said shafts. A. further feature of the invention consists in that the shafts of the fans are located in the same or about the same plane and so spaced that the ranges of operation of two adjacent fans intersect one another, in which case the fans may be situated in the same or about the saine plane, so that the blades of one tan pass between the blades of the other ian.

The accompanying drawings illustrate a condenser adapted for locomotives and provided in one embodiment with fans oper-V ating one above another and in the other embodiment with fans operating in the same plane. Y

Fig. l shows a side view of the first embodiment; n

Fig. 2 shows a section through this iirst embodiment, certain parts of the condenser being omitted;

Fig. 3 shows a plan view oi the ians;

Figs. t, 5 and 6 are similar views of the second embodiment. c

rlhe condenser shown consists ot an aircooled part and an accomulating liquid receptacle 2 co-operating in known manner with said air-cooled part l. The steam from the main turbine 3 enters the recep` tacle 2 and passes through the pipings i into a distributing pipe 5.y From said pipe the steam passes through the cooling elements 6 oi the air-cooled part l and returns v then in the icrm of water of condensation through the discharge pipes 7 to the liquid receptacle 2. .f Y

In this case the tans 8 and 9 are mounted above the liquid receptacle and beneath the air cooler. According to the invention the vfans 8 and 9 are placed so close to each other that the distance between their axes of rotation is less than the sum of their radii r1 and r2, the ranges of operation of the fans thus intersecting each other. In this embodiment the fans, in order to make their location possible, are disposed in dit erentplanes, the fans 8 being placed above the fans9.

The fans are mounted on the pipe 5 and their driving device is situated below the supporting device. lThe fans are driven by the shaft l01 by means of toothed wheels ll and rotate either in the same direction or in opposite directions. The fans operate within casings 13 and partitions la separating the air channels of the fans from one another. The shaft l() is driven by a turbine 12, ii? desired, by the aid of a toothed gearing.

ln Figs. il, 5 and 6 showing also a condenser ot the type described above, the fans are placed in the same plane, the blades or@ one fan, in the same manner as the teeth 0i a.` toothed wheel pass between the teeth of another toothed wheel with the diiterence that the blades do not Contact with each other, pass between the blades of the other fan. rlhe fans are so driven by the shaft l() and the toothed wheels in opposite directions that every other fan rotates in the same direction. shafts situated in about the same plane and one after another in the longitudinal direction or the condenser.

Obviously other locations of the shafts ot The fans are mounted on another* the fans may be imagined in case the fans are situated at the side of one another or one after another in two or more rows, while the ranges of the fans intersect one rlhis will be the case when the distance between two shafts lis less than the sum of the radii r1 and r2 of the 'fans mounted on said shafts.

That we claim as new and desire to secure by Letters Patent of the United States is l. In a blower Jfor air-cooled condensers `for locomotives and similar carriages, in combination a plurality 'of fans arranged at the side of each other for orcing'cooling air through the air-cooled condenser, a

`sha-ft for each of said fans, said shafts being so spaced that the distance between two adjacent shafts is less than the sum of the radii of the fans mounted of said shafts, and means for dividing the flow of air into 'parallel streams, one stream for each of said fans.-

2. In a blower for air-cooled condensers `for locomotives or similar vehicles, in combination a plurality of fans arranged at the. side oft each other for forcing` cooling' air through the air-cooled condenser, a shaft for each of said fans, said shafts being' placed in approximately the same plane at such a distance from one another that the ranges of two adjacent fans intersect each other, and means for dividing the flow of air into parallel streams, one stream for each of said fans.

3. In a blower for air-cooled condensers Jfor locomotives and similar carriages, in combination a plurality of fans arranged at the side of each other for forcing cooling' air through the air-cooled condenser, a shaft for each of said fans, said shafts being so spaced that the distance between two adjacent shafts is less than the sum ot' the radii of the fans mounted of said shafts, and partitions for dividing the yflow of air into parallel streams, one"stream for each of said fans.

In testimony whereof we aiiix our signatures.

FREDRIK LJUNGSTRM rsiDoR BROBERG. 

